By Mike Heller
Choosing a good amplifier for your speakers is not a trivial chore. You wish to ensure that your amplifier matches your loudspeakers. I will describe some fundamental amplifier language and give some advice to assist you choose the perfect amplifier.
Amplifiers vary in their size and range from types that will take up a good portion of your living room whereas several of the newest mini amplifier models are as tiny as a deck of cards. A lot of units will be the size of a ordinary audio rack so that you can easily stack it on top of your audio equipment.
Amplifiers vary in their size and range from types that will take up a good portion of your living room whereas several of the newest mini amplifier models are as tiny as a deck of cards. A lot of units will be the size of a ordinary audio rack so that you can easily stack it on top of your audio equipment.
There are a number of core amplifier technologies available. One technology is referred to as "solid-state". Solid-state amplifiers now make up for the majority of audio amplifiers. In the past, tube amps have been popular. Even today tube amplifiers are still available. However, tube amps have relatively high audio distortion. Audio distortion refers to how much the audio signal is being degraded whilst passing through the amp and is specified in percent. This value is often used when comparing the audio quality of amplifiers.
There are a number of core amplifier technologies available. One technology is labeled "solid-state". Solid-state amps now account for the majority of audio amplifiers. In the past, tube amplifiers have been popular. Even today tube amplifiers are still available. Unfortunately, tube amps have relatively large audio distortion which describes how much the audio signal is degraded by the amp.
In comparison, "Class-D" amps which are also referred to as "digital amplifiers" have a power efficiency of typically 80 to 90%. This enables the amplifier and power supply to be made a good deal smaller than analog amplifiers. Because of the switching output stage, digital amplifiers normally have larger harmonic distortion than analog amplifiers. On the other hand, some of the newest models are able to reduce distortion to 0.05% and less by employing a feedback mechanism.
When selecting an amp, ensure that the output power is sufficient to drive your speakers. The required power will be determined by how much power your loudspeakers can handle as well as the size of your room where y
There are a number of core amplifier technologies available. One technology is labeled "solid-state". Solid-state amps now account for the majority of audio amplifiers. In the past, tube amplifiers have been popular. Even today tube amplifiers are still available. Unfortunately, tube amps have relatively large audio distortion which describes how much the audio signal is degraded by the amp.
In comparison, "Class-D" amps which are also referred to as "digital amplifiers" have a power efficiency of typically 80 to 90%. This enables the amplifier and power supply to be made a good deal smaller than analog amplifiers. Because of the switching output stage, digital amplifiers normally have larger harmonic distortion than analog amplifiers. On the other hand, some of the newest models are able to reduce distortion to 0.05% and less by employing a feedback mechanism.
When selecting an amp, ensure that the output power is sufficient to drive your speakers. The required power will be determined by how much power your loudspeakers can handle as well as the size of your room where y
In comparison, "Class-D" amps which are also referred to as "digital amplifiers" have a power efficiency of typically 80 to 90%. This enables the amplifier and power supply to be made a good deal smaller than analog amplifiers. Because of the switching output stage, digital amplifiers normally have larger harmonic distortion than analog amplifiers. On the other hand, some of the newest models are able to reduce distortion to 0.05% and less by employing a feedback mechanism.
When selecting an amp, ensure that the output power is sufficient to drive your speakers. The required power will be determined by how much power your loudspeakers can handle as well as the size of your room where you will be listening. There are two values for speaker power handling: peak and average power handling. The peak value shows how much power the speaker can handle for short periods of time. The average value on the other hand denotes how much power the speaker can handle constantly without harm.
If you have a rather small listening area then 20 to 50 Watts of power should be sufficient while your speaker may be rated for 100 Watts or more. Loudspeakers on the other hand differ in their impedance and sensitivity. As a rule of thumb loudspeakers with low impedance offer higher sensitivity. High-sensitivity speakers are simpler to drive to high volume than low-sensitivity speakers. Check your amplifier manual to make sure that your amplifier can drive your loudspeaker impedance.
Lastly, be certain that your amp introduces little noise and has a broad enough frequency response. High-quality amps will have a signal-to-noise ratio of at the very least 100 dB and a frequency response of no less than 20 Hz to 20 kHz.
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When selecting an amp, ensure that the output power is sufficient to drive your speakers. The required power will be determined by how much power your loudspeakers can handle as well as the size of your room where you will be listening. There are two values for speaker power handling: peak and average power handling. The peak value shows how much power the speaker can handle for short periods of time. The average value on the other hand denotes how much power the speaker can handle constantly without harm.
If you have a rather small listening area then 20 to 50 Watts of power should be sufficient while your speaker may be rated for 100 Watts or more. Loudspeakers on the other hand differ in their impedance and sensitivity. As a rule of thumb loudspeakers with low impedance offer higher sensitivity. High-sensitivity speakers are simpler to drive to high volume than low-sensitivity speakers. Check your amplifier manual to make sure that your amplifier can drive your loudspeaker impedance.
Lastly, be certain that your amp introduces little noise and has a broad enough frequency response. High-quality amps will have a signal-to-noise ratio of at the very least 100 dB and a frequency response of no less than 20 Hz to 20 kHz.
About the Author:
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